The LC Smiths, at least those made prior to 1913, were normally choked full in each barrel, unless otherwise ordered. Smiths were never marked as to gauge and choke, and in my experience (I own and shoot 4 12 gauge LC Smiths at present) the best way to determine choke is to pattern test your gun.
I do use two of my Smiths for waterfowl, BUT ONLY with the Cabela's Hevi-Shot for classic doubles non-toxic loads, NEVER with steel shot. Good original replacement barrels for any older quality double are as scarce as an honest politician--
SST means single selective trigger, Smith later offered a single non-selective trigger. I only buy and shoot 12 gauge Smiths with double triggers, their Hunter One triggers are fine if they function, but if they "balk" or go "haywire" they are a gunsmith's nightmare. IMO the best LC Smith (and LeFever) gunsmith is Buck Hamlin, and if I have my facts right, he will not work on a Smith single trigger.
What type of Smith are you looking into buying, if I may ask? RWTF
